Analytical description of power losses in a transformer operating in the dual active bridge converter

Bulletin of the Polish Academy of Sciences. Technical Sciences

P. GrzejszczakCorresponding authorInstitute of Control and Industrial Electronics, Warsaw University of Technology, Warszawa, 75 Koszykowa St., 00-662 Warsaw, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  M. ZdanowskiInstitute of Control and Industrial Electronics, Warsaw University of Technology, Warszawa, 75 Koszykowa St., 00-662 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  M. NowakInstitute of Control and Industrial Electronics, Warsaw University of Technology, Warszawa, 75 Koszykowa St., 00-662 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  R. BarlikInstitute of Control and Industrial Electronics, Warsaw University of Technology, Warszawa, 75 Koszykowa St., 00-662 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Institute of Control and Industrial Electronics, Warsaw University of Technology, Warszawa, 75 Koszykowa St., 00-662 Warsaw, Poland

关键词: Keywords: core and windings losses;    ferrite;    planar transformer;    Steinmetz’s equation;    Dowell’s model;    dual active bridge;   

DOI  :  10.1515/bpasts-2016-0063

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

The paper presents an analytical approach to the determination of power losses in a high-frequency transformer operating in the dual active bridge (DAB). This transformer, having two single-phase transistor bridge inverters, couples two DC circuits that significantly differ in voltages (280 V and 51 V ±20%). Power losses in the core and windings of the planar transformer 5600 VA /100 kHz were calculated taking into account changes in the value and direction of the energy flow between the coupled DC circuits. These circuits represent storage or renewable energy sources and intermediate circuits of the converters used in distributed generation systems. Calculations were performed using the Steinmetz’s and Dowell’s equations. The analytical results have been verified experimentally.

【 授权许可】

Unknown